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4iiii PRECISION Power Meter For Shimano XTR M9000

josh March 12, 2018


4iiii’s accuracy and innovation paired with Shimano’s top end XTR group set

Clear selection


About the 4iiii PRECISION Power Meter For Shimano XTR M9000

Used by the World Pro Etixx-Quick-Step Team, the 4iiii PRECISION Power Meter for Shimano XTR M9000 is the lightest, most affordable direct force power meter available. The added weight of the 4iiii PRECISION is only 9 grams and it is accurate to within +/- 1%.

The 4iiii PRECISION is a left-only crank arm-based power meter and replaces your current left side crank arm. The 4iiii takes the power that is generated by your left leg and doubles it in order to determine your total power output.

In addition to being affordable, lightweight and highly accurate, the 4iiii PRECISION measures precise cadence data, has 3D power meter technology capable of measuring tri-axial strain and is compatible with both ANT+ and Bluetooth SMART devices.


4iiii PRECISION Power Meter For Shimano XTR M9000 Options

Crank arm lengths: 170 mm | 172.5 mm



The 4iiii PRECISION Power Meter For Shimano XTR M9000 is compatible with the following Shimano cranks:


  • M8000


  • M9000

In the Box

  • 4iiii PRECISION Power Meter
  • 2 2032 coin cell batteries
  • Quick Start guide



Name4iiii PRECISION XTR M9000
Power Meter TypeCrank arm
Type: GaugeStrain
Number of strain gaugesNA
Weight9 grams (plus weight of crank arm)
Crank Arm Lengths170, 175 mm
Battery Type2032 coin cell
Battery Life100 hours
Left/Right Power MeasurementNo
Communication ProtocolBluetooth SMART and ANT+
Claimed Accuracy+/- 1.0%


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